Evaluate API · Restricted accessRelease status
DeltaX Evaluate
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START SMALL. BUILD WITH INTENT.

Start free.
Room to grow.

Request free API access for your first integration.
No card or wallet required. Builder is coming soon.

FREEBy request

$0USD / month

100 evaluations per month.

Request API access No card required · Subject to approval and provisioning
  • Explore the current bounded-review API
  • Selected results or governed refusals
  • Gates and trace receipt references
  • 100-evaluation monthly allowance
  • No automatic paid upgrade or overage charge

Tell us about your workflow. We’ll follow up by email to confirm access and provisioning. Self-service signup is not yet available.

BUILDERComing soon

$49USD / month

10,000 evaluations per billing month.

Discuss Builder Planned Builder plan · Paid signup and checkout disabled
  • Bounded-review API access
  • Selections, refusals, and trace receipts
  • Credential creation and revocation
  • Usage visibility and a hard monthly cap
  • Stripe billing and invoice management
  • Cancellation at the end of your paid period

Start free with Preflight.

Check proposals locally. Add API review when your workflow needs it.

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BEFORE YOU BUILD

A few useful
answers.

How do I get the free 100 evaluations?

Choose Request API access and tell us your name, project, and workflow. We review requests and confirm provisioning by email. The Free allowance is 100 evaluations per month with no card required. Requesting access does not create an account automatically or guarantee admission.

What happens when I use the free allowance?

Free access is capped at 100 evaluations per month. Requests stop at the limit; there are no automatic charges or paid upgrades. We’ll confirm the allowance reset date when your account is provisioned.

Do I need Builder to use Preflight?

No. Preflight MCP, the CLI, and the GitHub Action are free public previews. They work locally without an account or API key. Builder is the separate optional subscription for Evaluate API access; paid signup is not yet available.

What counts as an evaluation?

Under the planned Builder allowance, a completed selection or governed refusal counts as one evaluation. An exact replay of the same request uses no additional allowance. Definite upstream rejections do not count; an uncertain request stays reserved until its outcome is reconciled.

What is the planned Builder limit?

The planned limit is 10,000 evaluations. New evaluations will pause until the next paid billing period. There are no automatic overage charges, and unused evaluations do not roll over.

Can I cancel?

The planned subscription includes cancellation through Stripe, with access through the end of the paid period. This flow is being tested before paid signup opens.

Does payment change what DeltaX can do?

No. A subscription provides access and an evaluation allowance. The same review gates apply, and a selected result never grants authority to execute an action.

Do I need a crypto wallet?

No. The Builder subscription uses Stripe billing. x402 is a separate payment path still in development and is not required for this plan.

Can I purchase today?

No. Paid signup and Stripe checkout are disabled on this site until signup, billing, API access, usage, and cancellation testing is complete. You can request restricted API access by email today.